Full synthetic vs. conventional 500K miles side-by-side teardown

[wildbill1973z28]

I cannot understand the latest Auto Stop/Start feature on recent models.

Shutting the engine off while not moving stops oil flow to hot turbos.
Crazy !!

It’s part of the plan! Pay pay pay baby

 

[Lobo1]

If it's got a turbo its going to use some ol between chnages. Whether its brand new or has 300K miles on it. A turbo burns some oil no matter what.

I got a 2001 Chevy 2500 HD with a 6.6 Duramax Turbo diesel in it with 269,834 miles on it. I bought it new. I have never had to add a drop of oil to it between oil changes and it is always been on the full mark when I check the oil. so I have to respectfully disagree with you on this

 

[basstracker89]

I got a 2001 Chevy 2500 HD with a 6.6 Duramax Turbo diesel in it with 269,834 miles on it. I bought it new. I have never had to add a drop of oil to it between oil changes and it is always been on the full mark when I check the oil. so I have to respectfully disagree with you on this

Come to think of it, my 92 Mercedes 300D with a 2.5L and @ 330k and 05 Dodge 2500 5.9L diesels with @ 210K don't either

 

[rbstern]

Is there a simple answer without me having to signup for a youtube account ? Thanks

Both engines were in very good shape. The synthetic engine was cleaner.

Bottom line: Oils are pretty good these days. If the vehicle manufacturer does their part, hundreds of thousands of miles should be achievable.

 

[sniper22]

Studies show that the biggest cause of engine wear on fuel injected engines is fuel dilution of the oil, caused by dirty injectors not getting a good atomizing spray pattern. If the injectors get dirty and they don't spray like they should you end up with unburned fuel washing past the rings and diluting the oil. I agree with more frequent oil change but even more important is to run a good fuel system cleaner through your gas tank at least as often as you change the oil if not more often.

That and change the air filter every time you change the oil. The Air filter is probably the most important player in your combustion engine.

 

[testdepth]

Initial thought is that both engines made it to 500000 miles and no need to pay more for synthetic when standard oil does the job.

 

[sniper22]

Initial thought is that both engines made it to 500000 miles and no need to pay more for synthetic when standard oil does the job.

Wonder what the actual total cost for oil changes on each were..

 

[CAMSDADDY]

That and change the air filter every time you change the oil. The Air filter is probably the most important player in your combustion engine.

I’m not sure about everytime but I can tell you folks would benefit changing them more often than most folks do. I’ve seen guys bring diesels in and the filter be sucked into the box and they were complaining it had no power. I grabbed a dirty shop rag one day and told a guy to tie it around his face and run across the parking lost and tell me if clean air is important. Neither of us could have ran that far but we both got the point.